/**
 *    Copyright 2012 Geensoft S.A.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/
package ar.com.greensoft.neosystem.dao.searching;

import java.io.Serializable;

/**
 * @author Jorge E. Villaverde
 * @version 1.0.0
 * @since 1.0.0
 */
public class SortCriteria implements Serializable {
	/**
	 * 
	 */
	private static final long serialVersionUID = 4111709163678809277L;
	private final String attribute;
	private final boolean ascending;

	public SortCriteria(String attribute, boolean ascending) {
		super();
		this.attribute = attribute;
		this.ascending = ascending;
	}

	public String getAttribute() {
		return attribute;
	}

	public boolean isAscending() {
		return ascending;
	}
	
	public String toString(){
		return "["+attribute+"] " + (ascending ? "ASC":"DES");
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + (ascending ? 1231 : 1237);
		result = prime * result
				+ ((attribute == null) ? 0 : attribute.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		SortCriteria other = (SortCriteria) obj;
		if (ascending != other.ascending)
			return false;
		if (attribute == null) {
			if (other.attribute != null)
				return false;
		} else if (!attribute.equals(other.attribute))
			return false;
		return true;
	}
	
	
}
